Radiator.



H. G. HARRISON.

RADIATOR.

APPLIOATIOH TILED 3111.18, 1911.

Patented Oct. 3, 1911.

HERBERT CHAMPION HARRISON. OF LOGKPORT. NEW YORK.

RADIATOR.

Specification of Letters Patent.

Patented Oct. 3, 1911.

Application filed January 16, 1911. Serial No. 602,956.

To all whom it may concern:

SON, a citizen of the United States, residing at Lockport, in the county of Niagara and State of New York, have invented certain new and useful Improvements in Radiators; and'I do hereby declare thefollowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it 'appertains to make and use the same.

This invention relates to radiators especially adapted for use upon automobiles and other vehicles, and has for its object to produce a more eflicient and a simpler structure than those heretofore produced for this purose. p To these ends the invention consists in the novel details of construction and combinations of parts more fully hereinafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings forming a part of this specification in which like numerals designate likeparts in all the views, Figure 1 is an elevational view of a radiator made in accordance with my invention; Fig. 2 is an enlarged detail sectional view of a portion of the parts shown in Fig. 1; Fig. 3 is a detail sectional view of a slightly modified form of construction; Fig. 4 is a plan view of one of the separating plates showing by dotted lines the places at which said plates are bent at the corners of the radiator cells; Fig. 5 is a plan view of a portion of a separator plate with a plurality of tubes in place; Fig. 6 is a detail sectional view of a still further modified form of construction; and, Fig. 7 is a plan view of a portion of a separator plate of the construction shown in Fig. 6.

1 indicates any suitable outer casing pro vided with an upper chamber 2 adapted to receive a cooling fluid such as water, and

also-provided with a lower chamber 3 from whic said cooling fluid is withdrawn from the casing 1. The. said casing 1 is also {no vided with an enlarged openin' 4 through which air or other cooling m ,iumpasses, and which serves to expose the cells of the radiator.

In the casing 1 is located a plurality of tubes 5 through which the fluid to be cooled passes, and these tubes are separated by plates 6, in a manner well known. Further, the general shape of the radiator cellular structure is polygonal as indicated, and. therefore the upper separating plate 7 generally has to have differently spaced perforations at the corners, such as 8, than it has at the sides or top, such as 9. That is to say, in order for the tubes 5 to properly pass through said plate 7 at a corner, it has been heretofore thought necessary to make the perforations somewhat larger at the corners than those perforations which occur on the top or side of the plate. In this way the angle at which the plate strikes the tubes was allowed for, and it was further found that the perforations had to be spaced somewhat farther apart than was the case at the sides or top of the plate. In manufacturing radiators however, on a large scale, it is a considerable item of expense to perforate the plate by one set'of dies for the tops and sides and to then perforate the plate by another set of dies differently spaced for the corners, for this not only involves two operations, but it also involves the extra cost of the second set of dies, as well as a considerable loss of time. According to my invention however, I use the same dies throughout, and make the perforations of the same size throughout the plate. The only change I make for the corners is, I s ace the dies for these portions of the plate differently from the dies which perforate the rest of the plate. plainly shown in Fig. 4, I provided a series of perforations 10 equally spaced, for the top. and I also provided another series of perforations 11 which may be spaced twice as far apart as are the perforations 10 for a cover. This is easily accomplished either by rendering alternate cutting dies inoperative or by omitting them altogether forthose portions of the plate which occupy the corners of the cellular structure. I next bend the plate into steps alon the lines 12 as best illustrated in Fig. 2, w en the tubes 18 at. the corners will pass through the perforations 11 at right angles to the plate 7, precisely as do the tubes 5 at the ends pass through the perforations 10. In this way That is to say, as I the perforations 11 are made without any extra expense whatever, and they are of uniformsize throughout the plate.

. cxceedingly-ellicicnt and inexpensive strucportions being a p ture results. The construction is further lessened n cost by the fact that said'tubes 5 as best shown in Fig. 5, are preferably made out-of a single strip of material which 1s first corrugated and then bent back upon itself as at 14, to form a series of tubes 5. The ends 15 of the strip are next suitably secured together as by rolling or bending over as shown. In order that the cooling air mayv act more etliciently, one series of tubes 5 may be staggered in relation to the next series as illustrated, thus producing a zig zag passage 16, which forces the air to ballot vbacli and forth from one series of tubes to the other in its passage through the radiator. The staggcring of thesaid tubes 5 requires that one setof tubes should have a longer folded tongue 17 than is the tongue 14 of the contiguous set and of course the separating plates such as 7 are provided with alternate, corresponding, elongated slots 18, as illustrated in Fig. 4.

In the modified form of construction shown in Fig. 3 the separating plates 6 are provided with numerous perforations 20 through which air may pass from one passage 16 to a contiguous passage, and therefore be permitted to more freely circulate upand down through the cellular structure.

In the still further modified form of structure shown in Fig. 6 the corrugations of the separate plates are made hexagonal in shape, and the walls of the cells thus formed are freely perforated as at 21 in order that a very free circulation of air may take place throughout the cellular structure. These numerous perforations 21 accordingly cause the airto be broken up and thrown into eddies as it passes through the radiator and thereby it forces a more complete contact between every particle of air and the tubes to be cooled than would be the case if the air simply passed through individual passages 25. In all cases it will be observedthat the structures of the same radiator elementsare duplicates of eaoh other and therefore the parts may be made at a minimum of cost.

What I claim is-: v '1. In an angular radiator structure the combination of a sep'araton plate having perfor ated'stra-ight a-nd'bent portions to con form to the shape of said structure, the distance between the urality'o'f times greater than the distance between theperforations in the straight portion; and a plurality of 1perforations in the bent.

tubes of uniform size passing through each set of perforations and making the same angle with said plate, substantially as described. I

2. In a radiator structure provided with top and corner portions, the combination of a separator plate provided with equally spacedperforationsthroughout said top portions and withequally spaced additional perforations of the same size as said first mentioned perforations throughout said corner portions; and a plurality of tubes of uniform size passing through each set of perforations at the same angle to said plate, substantially as described.

In a radiator structure having top and corner portions and a chamber above said portions, the combination of a separator plate extending over said top and corner portions provided with a series of perforations of equal size through each of said portions, the perforations associated with the corner portions being spaced differently from those associated with the to portion; and a plurality of tubes of uniform size passing through said perforations and making the same angle with said plate, substantially as described.

4. In a radiator structure provided with corners, the combination of a plurality of perforated separator plates; a plurality of tubes passing through the perforations and forming therewith a cellular structure provided with air passages, said plates also having additional perforations permitting the air to pass from one passage Into a contlguous passage; and an outer separator I plate having straight and bent portlons provided with perforations through which said tubes pass at the same angle to said plate, the perforations in the bent portions being spaced twice as far apart as the perforations in the straight portions, substantially as described.

5. In a radiator structure provided with corners, the combination of a plurality of perforated separator plates; a plurality of tubes passing through the perforationsand forming therewith a cellular structure provided with air passages, said plates also having additional perforations permitting the air to pass from one passage into a contiguous passage; and an outer separator plate bent at an angle to itself to form steps, extending over said corners and provided -with perforations of the same size as said vided with a plurality of perforations of In testimony whereof, I aifix my signahe same size as Saaidf firlslt mentioneili peia ture, in presence of two witnesses.-

orations, ut space art er apart an sai late bent into steps causing said latter per- HERBERT CHAMPION HARRISON 5 orations to be located in planes parallel to Witnesses:

said first mentioned perforations, substan- HARRIE'rr HUs'roN, tially as described. D. BURGESS.-

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

